Tool and guide adjustment.



H. J. MITCHELL.

TOOL AND GUIDE ADJUSTMENT.

APPLICATION FILED SEPT. 25. 1915.

1 ,226,902. Patented May 22, 1917.

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H. J. MITCHELL.

TOOL AND GUIDE ADJUSTMENT.

APPLICATION FILED SEPT. 25. 1,915.

Patented May22, 1917.

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TOOL AND GUIDE ADJUSTMENT.

APPLICATION FILED SEPT. 25. I915.

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. has to do particularly with the vertical and UNITED STATES PATENT OFFICE.

HARRISON J. MITCHELL, OF BELOIT, WISCONSIN, ASSIGNOR TO 1?. B. YATES MACHINE COMPANY, OF BELOIT, WISCONSIN, A CORPORATION OF WISCONSIN.

TOOL AND GUIDE ADJUSTMENT.

Specification of Letters Patent.

Patented May 22, 191 7.

Original application filed June 25, 1915, Serial No. 36,167. Divided and this application filed September 25,

I 1915. Serial No. 52,584.

To all whom it may concern Be it known that I, HARRISON J. Mrron- ELL, a citizen of the United States, residing at Beloit, in the county of Rock and State of Wisconsin, have invented certain new and useful Improvements in Tool and Guide Adjustment, of which the following is a specification.

This invention, a division of my application Serial No. 36,167, filed June 25, 1915,

lateral ad ustment of the tools and their guides, as a component part of a complete machine such as that forming the subject matter of the parent application.

A preferred embodiment of the invention is set forth in the following detailed description and in the accompanying drawings, in which Figure 1 is a horizontal section taken through a wood-Working machine embody ing the invention on a line immediately above the cutter head;

Fig. 2 is a side elevation of that portion of the machine shown in Fig. 1; 4

Fig. 3 is a transverse section through the machine immediately to the rear of the inner cutter head;

Fig. 4 is a horizontal section taken at a lower elevation than Fig. 1; and

Fig. 5 is a detail vertical section on the line 55 of Fig. 2.

Having reference to those portions on the machine. illustrated in the accompanying drawings, which are pertinent to the present application, it will be seen that immediately to the rear of the in-rolls (not shown) and substantially in transverse alinement with the sectional ages 11 is mounted the outside cutter head, ing the outer face of the material as it passes through the machine. The particular construction of the head forms no part of the present invention and consists generally in the rotaryhead 12 carrying cutting tools 13 and arranged to rotate in a horizontal plane upon the vertical shaft 14 said shaft aving its bearing at 15 in a bracket 16 mounted on a vertical pivot or pintle 17, said pivot and bracket mounted for vertical movement with the lower end of the pivot resting upon the cam 18 on the shaft 19 whereby upon the rocking of the shaft 19 the vertical adjustment of the cutthat isto say, the tool for dress ters 13 relative to the work will be varied. The shaft 14 of the outside cutter head is driven by the pulley 20 from any suitable source of power. The cutter head is inclosed within a housing 21 pivoted at 22 011 the bracket 16, the pivotal mounting of the housing being for the purpose of giving access to the cutter head when desired. The housing is normally yieldingly held in its closed position by means of the latch rod 23 pivoted to the housing at 24 and engaging within a keeper 25, the rod is provided with a spring 26 which bears at one end upon the collar 27 and at the other upon the keeper 25. By means of the handle 28 the latch rod may be swung clear of the keeper 25 thus permitting the housing to swing outwardly upon its pivot 22.

The tools 13 of the outside head are held to their work by means of the cam 29 on the shaft 30, said shaft having a laterally extending arm 31 connected by means of a link rod 32 with an arm 33 fast upon the rock shaft 34 to which is rigidly secured an operating lever, not shown. The head is pressed outwardly against the cam 29 by means of a plunger 35 mounted within the machine frame under the control of the compression spring 36 acting upon the guide abutment 37 (Fig. 4).

Extending rearwardly frOm the outside head and longitudinally in line with the work surface of the cutters is a front guide 38 along which the material is guided after leaving the outside cutter with its outer face finished. It is necessary that the position of this guide be adjusted laterally in unison with the lateral adjustment of the outside cutter head and for this purpose the shaft 30 bearing the cam 29 is provided with another arm 39 connected by means of a link 40 with an arm 41 extending from the rock shaft 42 mounted in bearings 43, 43 and carrying cams 44, 44 acting upon adjustable studs 45, 45, projecting from the guide 38. The guide is pressed outwardly and maintained incontact with the cams 44 by means of the springs 46, 46 mounted upon the rods 47, 47 connected to the guide as shown (Fig. 1).

Next adjacent the outside cutter head to the rear thereof is the inside cutter head 48 (Figs. 1, 3, 4) bearing the cutting tools 49 and mounted upon the vertically arranged shaft carrying the drive pulley 51. This cutter head is so disposed as to act upon the opposite face of the material from the outside cutter and provision must therefore be made for lateral displacement of the inside cutter head bodily to adaptthe same for the finishing of material of different widths. For this purpose the cutter head and its shaft are mounted within a slidable cross head by a ring frame 52 connected by means of the link 53 with the arm 54 of a rock shaft 55 from which extends another arm 56 connected by means of a link 57 with an arm 58 of the rock shaft 59. The shaft 59 is rocked by means of a lever ('30 and is held in adjusted position by means of the engagement of the lever 60 with the notches of a sector 61.

Reference has heretofore been made to the vertical adjustment of the outside cutter headby means of its footstep bearing on the cam 18 on the shaft 19. Provision is likewise made for the vertical adjustment simultaneously therewith of the inside head 48 from the rock shaft 19. An arm 62 keyed upon said shaft 19 (Fig. 3) carries a Vertical lift rod 63 having upon its upper end a bearing block 64 with an anti-friction roller 65 supporting the lower face of the cross head 52. Another arm 66 keyed upon the shaft 19 is cross connected by means of the link 67 with an arm 68 of an angle lever fulcrumed at 69, the other arm 70 of said lever carrying a second lift rod 63 having a bearing block 64 and an anti-friction roll 65 supporting the opposite side of the cross 7 head 52. It will be readily apparent that upon the rocking of the shaft 19 by means of its lever (not shown) both the outside and the inside heads will be vertically adjusted simultaneously to accord with the finish to be given the material.

The range of vertical adjustment of the two side heads is such as to enable the operator, in the one machine to plain dress the edges of the boards, or make ship lap of varying contour, or to drop the head entirely below the plane of the board and leave the edge unacted upon. The capacity of the inside head to drop below or disappear permits of the working in the machine of extra width material which can then overlie the depressed inside head.

I claim:

1. In a machine for surfacing material fed thereto, the combination with a laterally supporting guide, of a cutter head provided with tools for acting upon the material, a pivoted bracket bearing for the cutter head shaft arranged to allow the cutter head to swing toward and from the material, yielding means to press the bracket away from the material, manually operable means to adjustably force the bracket toward the material in opposition to the yielding means,

and means to adjust the bearing bracket vertically to vary the relation of the cutters to the face of the material.

2. In a machine for surfacing material fed thereto, the combination with a laterally 'ing means to press the bracket away from the material, manually operable means to adjustably force the bracket toward the materialin opposition to the yielding means, a cam shaft underlying the bracket, a cam on said shaft bearing upwardly against the bracket, and means to rock the shaft whereby to vertically adjust the bracket and cutter head.

8. In a machine for surfacing material fed thereto, the combination with a laterally supporting guide, of a cutter head provided with tools for acting upon the material, a pivoted bracket bearing for the cutter head shaft arranged to allow the cutter head to swing toward and from the material, a spring pressed plunger actingagainst the innerface of the bracket to yieldingly press the same away from the material, a cam shaft, a cam on said shaft arranged to bear against the bracket, means for rocking said shaft whereby to adjustably force the bracket toward the material in opposition to the spring pressed plunger, a cam shaft underlying the bearing bracket, a cam on said shaft bearing upwardly against the bracket, and means to rock the shaft whereby to vertically adjust the cutter head.

4. In a machine for surfacing material fed thereto, the combination with a laterally supporting guide, of a cutter head provided with tools for acting upon the material, a pivoted bracket bearing for the cutter head shaft arranged to allow the cutter head to swing toward and from the material, yielding means to press the bracket away from the material, manually operable means to adjustably force the bracket toward the material in opposition to the yielding means, a pivotally mounted swinging housingfor the cutter head,'a cooperating latch and keeper connected with the housing, a collar on said latch, and a spring interposed between the collar and keeper whereby to yieldingly resist'the opening movement of the housing.

5. In a machine for surfacing material fed thereto, the combination with alaterally supporting guide, of a cutter head provided with tools for acting upon the material, a pivoted bracket bearing for the cutter head shaft arranged to allow the cutter head to swing toward and from the material, a spring pressed plunger acting against the inner face of the bracket to yieldingly press the same away from the material, a cam shaft, a cam on said shaft arranged to bear against the bracket, means for rocking said shaft whereby to adjustably force the bracket toward the material in opposition to the spring pressed plunger, a cam shaft underlying the bearing bracket, a cam on said shaft bearing upwardly against the bracket, means to rock the shaft whereby to vertically adjust the cutter head, a pivotally mounted swinging housing for the cutter head, a cooperating latch and keeper connected with the housing, a collar on said latch and keeper connected with the housing, a collar on said latch, and a spring interposed between the collar and keeper whereby to yieldingly resist the opening movement of the housing.

6. In a machine for surfacing material fed thereto, the combination with a laterally supporting guide, of a cutter head provided with tools for acting upon the material, a

pintle mounted in the machine frame, a bearing bracket for the cutter head mounted thereon at one side thereof, a cam bearing on the bracket, means to actuate the cam to move the cutter head toward the work, a second cam bearing on the lower end of the pintle, and means to actuate the second cam to raise and lower the cutter head relative to the work.

7. In a machine for surfacing material fed thereto, the combination with a laterally supporting guide, of a cutter head provided with tools for acting upon the material, a cross head mounted in the machine frame for vertical adjustment as a bearing for the cutter head, a pair of shafts each having a pair of angularly disposed arms, a link connecting the arm of one pair with the corresponding arm of the other pair, links connecting each of the other arms with one side of the cross head, one pair of arms rigidly attached to its shaft, and means for rocking said shaft whereby to simultaneously adjust the two sides of the cross head vertically to raise and lower the cutter head.

8. In a machine for surfacing material fed thereto, the combination with a laterally supporting guide, of a cutter head provided with tools for acting upon the material, a cross head mounted in the machine frame for vertical and lateral movement a rock shaft, means for rocking the same, an arm projecting therefrom into a position at one side of the cross head, a link connecting said arm and cross head whereby to adjust the cross head laterally, a pair of shafts each having a pair of angularly disposed arms, a link connecting the corresponding arms of each pair, links connecting each of the other arms with one side of the cross head, one of the pairs of arms fixed upon its shaft, and means for rocking said shaft whereby to simultaneously adjust the two sides of the cross head vertically.

9. In a machine for surfacing material fed thereto, the combination with a laterally supporting guide, of a cutter head provided with tools for acting upon the material, a cross head mounted in the machine frame for vertical and lateral movement as a bearing for the cutter head, a pair of lift rods guided for vertical movement within the machine frame, anti-friction rollers journaled in the ends of the lift rods and serving to support the cross head, means for simultaneously adjusting the lift rods vertically, and means for adjusting the cross head laterally upon the anti-friction rollers.

10. In a machine for surfacing material fed therethrough and including tools arranged to act on said material, of a lateral supporting guide, and means for positioning said guide comprising a cam shaft, cams thereon, means for yieldingly holding thegnide against said cams, and means to rock the shaft whereby to force the guide laterally in opposition to the yielding means.

HARRISON J. MITCHELL. Witnesses:

MARY C. BRownR, MILTON Y. MILLER.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0." 

